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2026-04-23 - 04:34
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: ondemand
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack5slot4.osadl.org (updated Thu Apr 23, 2026 00:44:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11272136127,6sleep10-21swapper/119:07:061
1221211658,55sleep00-21swapper/019:08:170
13112114104,7sleep30-21swapper/319:09:283
11652113103,7sleep20-21swapper/219:07:352
176252590,0sleep10-21swapper/120:15:211
115822590,0sleep00-21swapper/000:30:180
95962580,0sleep30-21swapper/300:30:133
110972540,0sleep00-21swapper/019:15:170
152799280,27cyclictest0-21swapper/123:25:281
152799280,27cyclictest0-21swapper/121:27:001
152799280,27cyclictest0-21swapper/121:26:591
153199270,26cyclictest0-21swapper/223:33:072
153199270,26cyclictest0-21swapper/223:07:182
153199270,26cyclictest0-21swapper/222:40:302
152799270,26cyclictest0-21swapper/123:13:461
152799270,26cyclictest0-21swapper/121:36:411
152799270,26cyclictest0-21swapper/120:49:231
152799270,26cyclictest0-21swapper/120:42:261
1531992618,7cyclictest749-21snmpd00:28:342
153199260,25cyclictest0-21swapper/222:06:282
153199260,25cyclictest0-21swapper/221:38:152
153199260,25cyclictest0-21swapper/200:00:362
1527992622,3cyclictest0-21swapper/120:39:171
152799260,25cyclictest0-21swapper/123:54:491
152799260,25cyclictest0-21swapper/123:45:241
152799260,25cyclictest0-21swapper/123:04:371
152799260,25cyclictest0-21swapper/122:22:221
152799260,25cyclictest0-21swapper/121:59:301
152799260,25cyclictest0-21swapper/121:30:321
152799260,25cyclictest0-21swapper/121:01:201
152799260,25cyclictest0-21swapper/120:57:171
1531992523,2cyclictest0-21swapper/221:49:212
1527992521,3cyclictest0-21swapper/122:36:291
1527992518,7cyclictest0-21swapper/122:49:281
152799250,24cyclictest0-21swapper/120:31:381
152399250,24cyclictest0-21swapper/019:55:000
1531992422,2cyclictest0-21swapper/219:43:292
1531992418,5cyclictest749-21snmpd20:50:142
153199240,23cyclictest0-21swapper/223:39:192
153199240,21cyclictest0-21swapper/219:45:172
153199240,1cyclictest0-21swapper/221:20:102
153199240,19cyclictest0-21swapper/220:15:002
1527992422,2cyclictest0-21swapper/119:12:441
1527992417,7cyclictest0-21swapper/122:14:481
1527992417,7cyclictest0-21swapper/100:15:051
187832230,0sleep20-21swapper/223:40:192
1531992317,5cyclictest749-21snmpd19:32:472
1531992315,7cyclictest749-21snmpd23:26:522
1531992315,7cyclictest749-21snmpd22:45:072
1531992315,7cyclictest749-21snmpd19:20:592
153199231,21cyclictest0-21swapper/220:27:332
153199231,21cyclictest0-21swapper/219:12:022
153199230,21cyclictest0-21swapper/220:30:122
1527992321,1cyclictest0-21swapper/122:55:171
152799230,23cyclictest0-21swapper/121:06:061
152799230,23cyclictest0-21swapper/100:08:081
152799230,22cyclictest0-21swapper/120:51:121
1531992216,5cyclictest749-21snmpd23:54:552
1531992215,6cyclictest6026-21cat23:00:152
1531992215,5cyclictest8692-21apt-get20:40:122
1531992214,7cyclictest749-21snmpd23:48:092
1531992214,7cyclictest749-21snmpd22:03:452
153199220,21cyclictest0-21swapper/223:55:112
153199220,21cyclictest0-21swapper/221:51:212
153199220,21cyclictest0-21swapper/200:17:412
153199220,10cyclictest0-21swapper/200:36:162
1527992220,2cyclictest0-21swapper/121:48:181
152799220,22cyclictest0-21swapper/120:27:571
152799220,21cyclictest0-21swapper/123:15:571
152799220,21cyclictest0-21swapper/121:23:591
152799220,21cyclictest0-21swapper/120:23:201
152799220,21cyclictest0-21swapper/100:22:591
152399220,21cyclictest0-21swapper/019:24:220
106272220,1sleep310633-21kthreadcore20:40:193
153199215,12cyclictest0-21swapper/200:25:002
1531992117,2cyclictest749-21snmpd22:10:182
153199210,20cyclictest0-21swapper/222:27:422
153199210,20cyclictest0-21swapper/222:20:252
153199210,20cyclictest0-21swapper/221:17:262
153199210,20cyclictest0-21swapper/221:10:122
153199210,20cyclictest0-21swapper/220:22:262
153199210,20cyclictest0-21swapper/219:17:142
153199210,16cyclictest3053-21/usr/sbin/munin20:35:142
1527992119,2cyclictest0-21swapper/123:22:101
1527992119,2cyclictest0-21swapper/121:52:281
1527992119,2cyclictest0-21swapper/121:19:031
1527992118,2cyclictest0-21swapper/100:11:491
1527992114,7cyclictest0-21swapper/122:42:301
152799210,3cyclictest0-21swapper/119:21:261
152799210,21cyclictest0-21swapper/121:44:281
152799210,20cyclictest0-21swapper/123:42:131
152799210,20cyclictest0-21swapper/123:30:571
152799210,20cyclictest0-21swapper/122:50:211
152799210,20cyclictest0-21swapper/122:32:191
152799210,20cyclictest0-21swapper/122:09:311
152799210,20cyclictest0-21swapper/120:05:081
152799210,20cyclictest0-21swapper/119:41:201
152799210,20cyclictest0-21swapper/119:36:081
152799210,20cyclictest0-21swapper/119:25:111
152799210,20cyclictest0-21swapper/100:04:071
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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